Public bug reported:
I ran do-release-upgrade to update Ubuntu 18.04 to 20.04. This was done
remotely, so it was important that the system could boot up again.
At the point it tries to install grub to the MBR it fails as it
incorrectly identifies a USB connected drive as the boot drive. The USB
connected drive is /dev/sda, whereas the boot drive, where the MBR
needed to be updated, was /dev/sdb.
I do not know yet if the system can boot, but I ended up using a 3rd
party app called boot-repair, which deals with this situation better by
offering to install grub to the MBR of all detected disks.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.32
ProcVersionSignature: Ubuntu 4.15.0-143.147-generic 4.15.18
Uname: Linux 4.15.0-143-generic x86_64
NonfreeKernelModules: lkp_Ubuntu_4_15_0_143_147_generic_81
ApportVersion: 2.20.11-0ubuntu27.17
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Thu Oct 14 08:38:56 2021
PackageArchitecture: all
ProcEnviron:
TERM=screen.xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2021-10-14 (0 days ago)
VarLogDistupgradeXorgFixuplog:
INFO:root:/usr/bin/do-release-upgrade running
INFO:root:No xorg.conf, exiting
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade focal uec-images
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1947121
Title:
do-release-upgrade misidentifies boot disk
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1947121/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
